PhpStorm 2016.3 Help

Profiling with Xdebug

Besides interactive debugging, PhpStorm integration with Xdebug also supports profiling.
PhpStorm provides visual representation of profiling data generated by Xdebug. You can select several snapshots at a time and collect the aggregated profiling information.

Before profiling with Xdebug, download, install and configure the components of the PHP development environment. Normally, these are a PHP engine, a web server,
and the Xdebug tool.